Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-90622

CVE-2026-90622LOW

GNU libredwg Layer Encoding dwg.spec DWG_TABLE null pointer dereference

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   L   L   N   L   N   N   N   L    1.9   .0017    5.5     —

AFFECTED
  Product   Versions  Fixed
  libredwg  0.13.4 –  0.14

TIMELINE
  Sep 12  Reserved by VulDB
  Sep 14  Published (CNA: VulDB)
  Sep 15  EXPLOIT PUBLISHED — CVE-2026-90622 (GNU libredwg). Public exploit reference added.

CWE-404, CWE-476 · CNA: VulDB · CVSS v4.0 · 9 references · NVD status: Deferred

Description

A security flaw has been discovered in GNU libredwg 0.13.4. This impacts the function DWG_TABLE of the file src/dwg.spec of the component Layer Encoding. Performing a manipulation results in null pointer dereference. The attack needs to be approached locally. The exploit has been released to the public and may be used for attacks. Upgrading to version 0.14 will fix this issue. The patch is named f5b548c4c1697d66c3dabd0f6a49280a14365a3a. The affected component should be upgraded. The FIELD_HANDLE macro itself is NULL-safe (emits null_handle) - only the two raw zeroing assignments added by 27118c40 ("encode: also disable LAYER.material") dereferenced a NULL material handle; the fix restores the file's existing if (_obj->style) guard convention for material.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
September 12, 2026	Reserved	Reserved by VulDB
September 14, 2026	Published	Published (CNA: VulDB)
September 15, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-90622 (GNU libredwg). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
GNU	libredwg	—	0.13.4	0.14

Weaknesses

CWE-404 · CWE-476

References (9)

Authoritative record: CVE-2026-90622 at cve.org

Vendors: gnu

Weaknesses: CWE-404 · CWE-476

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-90622 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.